Collector feeding mechanism

Abstract

The utility model discloses a collector sheet feeding mechanism, which comprises a turntable; the at least two groups of feeding assemblies are detachably arranged on the rotary table, and the rotary table drives the feeding assemblies to move to a feeding station when rotating; the current collecting piece jacking assembly and the current collecting piece detection unit are arranged at the feeding station; the feeding assembly comprises a fixed base detachably arranged on the rotary disc, a sliding block guide rod arranged on the fixed base, a feeding sliding block capable of moving up and down along the sliding block guide rod, a fixed top block arranged on the top of the sliding block guide rod, and a collector piece anti-adhesion piece connected with the fixed top block. Collector pieces are stacked on the feeding sliding block, and the feeding sliding block moves up and down between the fixed base and the fixed ejector block under the control of the collector piece jacking assembly. According to the utility model, the cartridge clip type feeding assemblies are adopted, and the multi-station turntable provided with a plurality of groups of feeding assemblies is adopted, so that the feeding of the feeding assemblies is facilitated, the feeding continuity is not influenced, and the feeding efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery automatic production equipment, and particularly relates to a cartridge-type current collector feeding mechanism for a battery preparation process. Background Art

[0002] During the preparation process of cylindrical lithium batteries, the positive and negative electrode sheets and the separator are wound into an electrode core by a winding machine, and then tabs are provided at the ends of the electrode core. In order to improve the performance of the finished electrode core, the full-tab process has been increasingly applied. For the electrode core adopting the full-tab process, the current collectors at both ends need to be flattened, and then current collector sheets are welded to form a unified conductor. In order to increase the contact area, the welding surface of the current collector sheet also needs to be increased accordingly. The shape of the current collector sheet is no longer the traditional rectangle, but has more customized shapes. Therefore, in the battery production line, a feeding mechanism for the current collector sheet needs to be set up to feed the customized processed current collector sheet to the production equipment. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a current collector feeding mechanism with high feeding efficiency and the feeding components can be quickly disassembled and replaced.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solution:

[0005] A current collector feeding mechanism includes: a turntable; at least two groups of feeding components detachably arranged on the turntable, and when the turntable rotates, it drives the feeding components to move to the feeding station; a current collector lifting component and a current collector detection unit arranged at the feeding station; the feeding component includes a fixed base detachably arranged on the turntable, a slider guide rod arranged on the fixed base, a feeding slider that can move up and down along the slider guide rod, a fixed top block arranged at the top of the slider guide rod, and a current collector anti-adhesion part connected to the fixed top block; the current collector sheets are stacked on the feeding slider, and the feeding slider moves up and down between the fixed base and the fixed top block under the control of the current collector lifting component.

[0006] In some embodiments, a thimble is arranged on the fixed base, and the through hole on the current collector sheet is penetrated by the thimble.

[0007] In some embodiments, the current collector guiding part is a pair of limiting rods fixedly arranged between the fixed base and the fixed top block and arranged at intervals, and one end of the current collector sheet is located between the limiting rods.

[0008] In some embodiments, an elastic buckle that can be buckled on the fixed base is arranged on the turntable.

[0009] Further, a positioning pin protruding from the turntable is provided on the turntable, and a positioning hole corresponding to the positioning pin is provided at the bottom of the fixed base. When the fixed base is installed on the turntable, the positioning pin extends into the positioning hole.

[0010] Further, a magnet is provided on the turntable. The magnet is embedded in the turntable. The fixed base is a magnetic metal base or a magnetic metal block is provided on the bottom surface of the fixed base.

[0011] In some embodiments, the current collector sheet lifting assembly includes a lifting part mounting bracket, a current collector sheet lifting part provided on the lifting part mounting bracket, a lifting drive unit for controlling the up and down movement of the lifting part mounting bracket, and a telescopic drive unit for controlling the front and back movement of the current collector sheet lifting part; the current collector sheet lifting part can extend forward under the feeding slider to drive the feeding slider to move upward.

[0012] Further, the lifting drive unit is a linear movement module.

[0013] Further, the telescopic drive unit is a cylinder.

[0014] In some embodiments, the current collector sheet anti-sticking member is a brush; and / or, the current collector sheet detection unit is a photoelectric sensor for detecting whether the current collector sheet has moved up in place and whether the current collector sheet is out of stock.

[0015] As can be seen from the above technical solutions, the present utility model provides a magazine-type feeding assembly, adopts a multi-station turntable provided with multiple groups of feeding assemblies, and the current collector sheets in the feeding assemblies are stacked, increasing the supply quantity of the current collector sheets, reducing the number of manual material change operations, being beneficial to improving the feeding efficiency. The feeding assembly adopts a lifting feeding method, which can achieve stable feeding. Moreover, the feeding assembly is installed on the turntable in a detachable structure, which is convenient for loading the feeding assembly and does not affect the continuity of feeding, also improving the feeding efficiency. The current collector sheet detection unit can detect the lack of material in the feeding assembly, so that the turntable can rotate according to the feeding situation of the feeding assembly to realize the automatic conversion of the working positions of the feeding assembly, overall improving the automation efficiency. The feeding assembly of the present utility model can be compatible with current collector sheets of various customized shapes. In more specific embodiments, the elastic buckle can realize the quick disassembly and assembly of the feeding assembly. The magnet and the positioning pin can ensure the feeding accuracy and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0017] Figure 1 Structural schematic diagram of the current collector sheet feeding mechanism according to an embodiment of the present utility model;

[0018] Figure 2 Structural schematic diagram of the turntable according to an embodiment of the present utility model;

[0019] Figure 3 Structural schematic diagram of the feeding assembly according to an embodiment of the present utility model;

[0020] Figure 4 Top view of the feeding assembly according to an embodiment of the present utility model;

[0021] Figure 5 Front view of the feeding assembly according to an embodiment of the present utility model;

[0022] Figure 6 Structural schematic diagram of the current collector sheet lifting part according to an embodiment of the present utility model.

[0023] The following further describes in detail the specific embodiments of the present utility model in conjunction with the accompanying drawings. Specific embodiments

[0024] The present utility model will be described in detail below in conjunction with the accompanying drawings. When describing the embodiments of the present utility model in detail, for the convenience of explanation, the drawings showing the device structure will be enlarged locally not in accordance with the general ratio, and the schematic diagrams are only examples, which should not limit the protection scope of the present utility model here. It should be noted that the drawings are in a simplified form and all use non-precise ratios, only for the purpose of facilitating and clearly assisting in explaining the embodiments of the present utility model. At the same time, in the description of the present application, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features; the terms "front", "back", "bottom", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0025] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can also be the communication inside two elements. It can be a wireless connection or a wired connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] like Figure 1 As shown, the current collecting piece feeding mechanism of this embodiment includes a turntable 1, a feeding assembly 2, a current collecting piece lifting assembly 3 and a current collecting piece detection unit 4. The feeding assembly 2 is arranged on the turntable 1, and at least two groups of feeding assemblies 2 are arranged on the turntable 1. The turntable 1 can rotate under the drive of the rotary drive unit 5, so that the feeding assembly 2 arranged on the turntable 1 can be moved to the loading station in sequence. The current collecting piece lifting assembly 3 and the current collecting piece detection unit 4 are arranged at the loading station, and are both located beside the turntable 1.

[0027] The feeding assembly 2 is used to store the current collecting pieces to be loaded. The feeding assembly 2 is detachably arranged on the turntable 1. When the current collecting pieces stored by a group of feeding assemblies 2 are loaded, the feeding assembly 2 can be removed from the turntable 1, and the workers will reinstall the current collecting pieces and then install them on the turntable 1. There are multiple groups of feeding assemblies 2 arranged on the turntable 1. The feeding assembly 2 that has completed the loading of the current collecting pieces will rotate away from the loading station with the turntable 1, and another group of feeding assemblies 2 will rotate to the loading station to continue loading. The reloading of the current collecting pieces and the continuous loading of the current collecting pieces do not affect each other, thereby ensuring the loading efficiency. In this embodiment, 4 groups of feeding assemblies 2 are arranged on the turntable 1 at even intervals along the circumference. In other embodiments, the number of feeding assemblies 2 on the turntable 1 can also be changed accordingly according to production needs.

[0028] Reference Figure 3 , Figure 4 and Figure 5 The feeding assembly 2 of this embodiment includes a fixed base 2-1, a feeding slider 2-2, a slider guide rod 2-3, a fixed top block 2-4, a current collecting plate guide part 2-5, and a current collecting plate anti-adhesion part 2-6. The fixed base 2-1 is detachably mounted on the turntable 1. The fixed base 2-1 and the turntable 1 of this embodiment cooperate with each other through elastic buckles arranged on the turntable 1. A pair of relatively arranged elastic buckles 1-1 are arranged at each feeding assembly installation position on the turntable 1. The elastic buckles 1-1 can be buckled on the fixed base 2-1 to fix the fixed base 2-1. When disassembling, the elastic buckles 1-1 are broken apart to remove the fixed base 2-1 (feeding assembly 2) from the turntable 1, thereby realizing quick disassembly and quick replacement of the feeding assembly 2.

[0029] Since the turntable 1 rotates, in order to prevent the feeding assembly 2 (fixed base 2-1) from shifting during the rotation process, optionally, a positioning pin 1-2 is provided on the turntable 1. Figure 2As shown, a pair of positioning pins 1-2 protruding from the surface of the turntable 1 are provided at the installation position of each feeding assembly 2 on the turntable 1, and positioning holes (not shown) corresponding to the positioning pins 1-2 are provided on the bottom surface of the fixed base 2-1. When the fixed base 2-1 is installed on the turntable 1, the positioning pins 1-2 extend into the positioning holes, which can assist in fixing the position of the fixed base 2-1. The fixed base 2-1 is restricted by the positioning pins 1-2 and cannot move on the turntable 1.

[0030] Further optionally, a magnet 1-3 is provided at the installation position of the feeding assembly on the turntable 1, and the magnet 1-3 is embedded in the turntable 1. The fixed base 2-1 can be made of a magnetic metal material, or a magnetic metal block is provided on the bottom surface of the fixed base 2-1. Through the magnetic adsorption effect of the magnet 1-3, the fixed base 2-1 (feeding assembly 2) can be firmly installed on the turntable 1 without affecting the quick release and quick replacement function of the feeding assembly 2.

[0031] The slider guide rod 2-3 is arranged on the fixed base 2-1 and extends vertically upward. The fixed top block 2-4 is fixedly arranged on the top of the slider guide rod 2-3. The feed slider 2-2 is arranged on the fixed base 2-1 so as to be movable up and down, and can move up and down between the fixed base 2-1 and the fixed top block 2-4. The feed slider 2-2 is provided with a through hole for the slider guide rod 2-3 to pass through, and the feed slider 2-2 slides up and down along the slider guide rod 2-3. The collector 100 is stacked on the feed slider 2-2, Figure 1 , Figure 3 and Figure 5 The current collecting pieces 100 stacked on the feeding slider 2 - 2 are shown in a simple manner, and not all the current collecting pieces 100 are shown completely, and it does not mean that the current collecting pieces 100 are placed in an interval manner.

[0032] The current collecting plate guide part 2-5 of this embodiment is a pair of spaced limiting rods, the two ends of which are respectively fixed to the fixed base 2-1 and the fixed top block 2-4, and the feed slider 2-2 is provided with a through hole for the limiting rod to pass through. The interval between the limiting rods corresponds to the size of the current collecting plate 100, and one end of the current collecting plate 100 can be placed between the two limiting rods, so that the current collecting plate 100 is restricted by the limiting rods when it moves up and down with the feed slider 2-2, and is not easily displaced.

[0033] Custom-made current collecting plates usually have through holes for directional positioning. In this embodiment, a pin 2-7 is provided on the fixed base 2-1. The through hole on the current collecting plate 100 is penetrated by the pin 2-7. The end of the current collecting plate 100 opposite to the through hole is located between the limit rods.

[0034] The feed slider 2-2 moves upward under the control of the current collecting plate lifting assembly 3. Figure 1 , Figure 3and Figure 6 As shown in Figure 6 , the current collector lifting assembly 3 of this embodiment includes a current collector lifting part 3-1, a telescopic driving unit 3-2, a lifting part mounting bracket 3-3, and a lifting driving unit 3-4. The lifting driving unit 3-4 of this embodiment is a linear motion module, and the linear motion module can ensure the high precision and stability of the movement of the current collector lifting part 3-1. In other embodiments, conventional driving devices such as motors or cylinders can also be used. The lifting part mounting bracket 3-3 moves up and down under the control of the linear motion module. The current collector lifting part 3-1 is arranged on the lifting mounting bracket 3-3 and moves up and down with the lifting part mounting bracket 3-3. The current collector lifting part 3-1 can also move back and forth under the control of the telescopic driving unit 3-2. When moving forward, the current collector lifting part 3-1 can extend below the feeding slider 2-2. Thus, when the current collector lifting part 3-1 moves upward, it can drive the feeding slider 2-2 to move upward for feeding. When the current collector lifting part 3-1 moves backward, it can prevent interference with the rotation of the turntable driving the feeding assembly. The telescopic driving unit 3-2 of this embodiment uses a cylinder.

[0035] The current collector anti-sticking part 2-6 is connected to the fixed top block 2-4 through the bracket 2-8. The current collector anti-sticking part 2-6 of this embodiment uses a brush. The current collector anti-sticking part 2-6 is used to prevent the stacked current collectors from sticking together and prevent the misoperation that the feeding suction cup 5 picks up multiple current collectors at one time and sends them to the next station. Moreover, the brush itself is made of a soft material. When the current collector moves up on the feeding slider 2-2, it can pass through the brush without being damaged. At the same time, when the current collector passes through the brush, the brush can separate the current collectors from each other and prevent them from sticking together.

[0036] The current collector sheet detection unit 4 is arranged at the loading station. The current collector sheet detection unit 4 has two functions. One function is to determine whether the current collector sheet moves in place (movement in-place detection) when the feeding slider 2-2 moves upward to feed the current collector sheet upward, that is, every time the feeding slider 2-2 moves upward to feed the current collector sheet upward, whether the uppermost current collector sheet moves to a unified feeding height, so that the loading suction cup 5 can accurately pick up the current collector sheet. For example, when the uppermost current collector sheet is detected, that is, when it moves to the feeding height, the feeding slider can be controlled not to move upward any further. Another function of the current collector sheet detection unit 4 is to detect whether there is still a current collector sheet on the feeding slider 2-2 (material shortage detection). When the feeding slider 2-2 moves upward to a set height (the feeding slider cannot move upward any further after moving to the set height), if the current collector sheets have all been taken away by the loading suction cup 5 at this time and the current collector sheet detection unit 4 cannot detect the current collector sheet, a detection signal of material shortage is sent. The rotation drive unit 5 can control the turntable 1 to rotate according to the detection signal of the current collector sheet detection unit 4, and rotate another set of feeding components to the loading station for feeding. The premise of the material shortage detection is that the feeding slider 2-2 moves to the set height, and the set height can be set by the production personnel according to the situation and is not limited here. The current collector sheet detection unit 4 of this embodiment uses a photoelectric sensor. When there is a material shortage, the photoelectric sensor outputs a material shortage signal to drive the conversion of the turntable station.

[0037] The following combines Figure 1 to describe the operation process of the feeding mechanism of this embodiment:

[0038] When the feeding component 2 rotates with the turntable 1 to the loading station, the turntable 1 stops rotating;

[0039] The telescopic drive unit 3-2 controls the current collector sheet lifting part 3-1 to extend below the feeding slider 2-2, and the lifting drive unit 3-4 acts to drive the current collector sheet lifting part 3-1 to move upward, and the current collector sheet lifting part 3-1 drives the feeding slider 2-2 to move upward;

[0040] The loading suction cup 5 at the loading station sucks the uppermost current collector sheet 100 and moves it to the next station. When the uppermost current collector sheet 100 moves with the loading suction cup 5, it passes through the current collector sheet anti-adhesion part 2-6, and the current collector sheet anti-adhesion part 2-6 screens out the adhered current collector sheets, separates and blocks the adhered current collector sheets, and prevents the current collector sheets adhered to the uppermost current collector sheet from being taken away together with the loading suction cup 5;

[0041] After removing one current collector sheet 100, the lifting drive unit 3-4 controls the current collector sheet lifting part 3-1 to continue driving the feeding slider 2-2 to move upward by one position, and the remaining current collector sheets 100 wait for the loading suction cup 5 to move them to the next station;

[0042] Repeat the above actions. When all the current collectors 100 on the feeding slider 2-2 are loaded, the current collector detection unit 4 detects that there are no more current collectors on the feeding slider 2-2 and sends a detection signal. Then the turntable 1 rotates to rotate another feeding component 2 to the loading station, and continue to repeat the above actions to load the current collectors. The operator can remove the loaded feeding component 2 from the turntable 1 and install other current collectors to be fed.

[0043] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A current collecting sheet feeding mechanism, characterized in that: include: Turntable; At least two groups of feeding components are detachably arranged on the rotating disk, and when the rotating disk rotates, the feeding components are driven to move to the loading station; A current collecting piece lifting assembly and a current collecting piece detection unit arranged at the loading station; The feeding assembly includes a fixed base detachably arranged on the turntable, a slider guide rod arranged on the fixed base, a feeding slider movable up and down along the slider guide rod, a fixed top block arranged on the top of the slider guide rod, and a current collecting sheet anti-sticking part connected to the fixed top block; the current collecting sheet is stacked on the feeding slider, and the feeding slider moves up and down between the fixed base and the fixed top block under the control of the current collecting sheet lifting assembly.

2. The current collecting sheet feeding mechanism according to claim 1, characterized in that: The fixing base is provided with an ejector pin, and the through hole on the current collecting sheet is penetrated by the ejector pin.

3. The current collecting sheet feeding mechanism according to claim 1 or 2, characterized in that: The current collecting piece guide part is a pair of limiting rods fixed between the fixed base and the fixed top block and arranged at intervals, and one end of the current collecting piece is located between the limiting rods.

4. The current collecting sheet feeding mechanism according to claim 1, characterized in that: The rotating disk is provided with an elastic buckle which can be buckled on the fixed base.

5. The current collecting sheet feeding mechanism according to claim 4, characterized in that: The turntable is provided with a positioning pin protruding from the turntable, and the bottom of the fixed base is provided with a positioning hole corresponding to the positioning pin. When the fixed base is installed on the turntable, the positioning pin extends into the positioning hole.

6. The current collecting sheet feeding mechanism according to claim 4 or 5, characterized in that: The turntable is provided with a magnet, the magnet is embedded in the turntable, and the fixed base is a magnetic metal base or a magnetic metal block is provided on the bottom surface of the fixed base.

7. The current collecting sheet feeding mechanism according to claim 1, characterized in that: The current collecting plate lifting assembly includes a lifting part mounting frame, a current collecting plate lifting part arranged on the lifting part mounting frame, a lifting drive unit for controlling the up and down movement of the lifting part mounting frame, and a telescopic drive unit for controlling the forward and backward movement of the current collecting plate lifting part; the current collecting plate lifting part can extend forward to the bottom of the feeding slider, driving the feeding slider to move upward.

8. The current collecting sheet feeding mechanism according to claim 7, characterized in that: The lifting drive unit is a linear moving module.

9. The current collecting sheet feeding mechanism according to claim 7, characterized in that: The telescopic driving unit is a cylinder.

10. The current collecting sheet feeding mechanism according to claim 1, characterized in that: The current collecting sheet anti-adhesion member is a brush; And / or, the current collecting piece detection unit is a photoelectric sensor, which is used to detect whether the current collecting piece has been moved up to the correct position and whether the current collecting piece is short of material.

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